›› 2009, Vol. 36 ›› Issue (12): 204-206.

• 经验交流 • Previous Articles     Next Articles

Correlation Analysis of Breeding Traits Affecting the Litter Weight of New Line Duroc Pigs at 60-day-old

HUA Sheng,MEI Shu-qi,PENG Xian-wen   

  1. (Hubei Academy of Agricuttural Science, Wuhan 430209, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-12-20 Published:2009-12-20

Abstract: The major breeding traits which affected the litter weight of new line Duroc pigs at 60-day-old were found by using path coefficeient,determination coefficient and multi-factor gradual regression analysis.60-day litter size,20-day litter size,60-day weight and 20-day weight had great influence, but the birth weight,liveborn weight and number born alive had little influence .The optimal regression equation which affected the litter weight at 60-day-old was Y=2.1836X4-15.6442X5-11.4572X6+ 18.192X7+6.9936X8-44.6259.

Key words: new line Duroc pigs; 60-day litter weight; correlation analysis

CLC Number: